The stock market on October 12, 1988
October 12, 1988, a Wednesday. The S&P 500 fell 1.42% to close at 273.98. Of 6,143 US stocks that traded, 1,359 rose and 2,415 fell.
The S&P 500-1.42%closed at 273.98
How big a move#3,430of 24,799 trading days since 1928
$100 in the index since$2,812price only, to September 24, 2026
Stocks that rose1,359of 6,143; 2,415 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| ConocoPhillips (P) | +8.5% |
| Goodrich (GR) | +3.8% |
| Walgreens Boots Alliance (WAG) | +3.7% |
Biggest falls among the 500 largest companies
| Motorola Solutions (MOT) | -6.7% |
| Illinois Tool Works (ITW) | -5.1% |
| Gannett (GCI) | -5.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 11, 1988 · Every October 12 · October 13, 1988 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.